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아두이노 호환 젬마보드 (웨어러블) Adafruit GEMMA v2 - Miniature wearable electronic platform
판매가격 : 12,100원 (부가세 포함)
상품코드 :[3054]JOH-ADA-1222
배송일 :당일발송
제조사 :Adafruit
브랜드 :Adafruit [브랜드몰 바로가기]
남은수량 : 9개
구매수량 :
총 금액 :
추가&대량구매 요청 053-588-4080

GEMMA는 FLORA보다 더 작은 사이즈로 1"(2.54cm)정도의 지름을 가지고 있습니다.
attiny85를 사용하였으며 아두이노 IDE를 이용하여 프로그래밍이 가능합니다.
3개의 IO를 가지고 있으며 1개는 아날로그 입력으로, 2개는 PWM 출력으로 사용이 가능합니다.
I2C 통신을 사용할 수 있고 8MHz 클럭으로 동작합니다.

특징
초소형 - 1.1"/28mm 지름, 7mm 두께
동박이 부착되어 있어 납땜이 간편함
attiny85 내장으로 flash 8k, sram 512 bytes, eeprom 512bytes
8MHz 클럭 사용
저전력 - 동작시 9mA 사용
아두이노 IDE로 프로그래밍 가능 - 확인용 LED 내장
3.3V 레귤레이터 내장 - 150mA 출력 가능
최대 입력 전압 16V
역전압 보호 회로, 전류 제한회로 내장
3개의 GPIO - 1개의 아날로그 입력, 2개 PWM 출력 가능
I2C기기 사용 가능
무게 : 3.29g

DESCRIPTION

Love FLORA but want a bite-sized version? Look no further, GEMMA is a tiny wearable platform board with a lot of might in a 1" diameter package. Powered by a Attiny85 and programmable with an Arduino IDE over USB, you'll be able to realize any wearable project!

We wanted to design a microcontroller board that was small enough to fit into any project, and low cost enough to use without hesitation. Perfect for when you don't want to give up your Flora and you aren't willing to take apart the project you worked so hard to design. It's our lowest-cost sewable controller!

NEW In version 2! On March 4, 2015 we released Version 2, which is physically and code-wise identical but has changed the Mini-B connection for a Micro-B USB connector and adds a much-requested On-Off switch!


The Attiny85 is a fun processor because despite being so small, it has 8K of flash, and 5 I/O pins, including analog inputs and PWM 'analog' outputs. We designed a USB bootloader so you can plug it into any computer and reprogram it over a USB port just like an Arduino (it uses 2 of the 5 I/O pins, leaving you with 3). In fact we even made some simple modifications to the Arduino IDE so that it works like a mini-Flora. Perfect for small & simple projects the GEMMA will be your go-to wearable electronics platform.

Even though you can program GEMMA using the Arduino IDE, it's not a fully 100% Arduino-compatible. There are some things you trade off for such a small and low cost microcontroller!

  • GEMMA does not have a Serial port connection for debugging so the serial port monitor will not be able to send/receive data
  • Some computers' USB v3 ports don't recognize the GEMMAs bootloader. Simply use a USB v2 port or a USB hub in between

Here are some useful specifications!

  • Super small, only 1.1" / 28mm diameter and 0.28" / 7mm thick.
  • Easy-to-sew or solder pads for embedding in your wearable project
  • Low cost enough, you can use one for every weekend project
  • ATtiny85 on-board, 8K of flash, 512 byte of SRAM, 512 bytes of EEPROM
  • Internal oscillator runs at 8MHz
  • Ultra low power, draws only 9 mA while running
  • USB bootloader with a nice LED indicator looks just like a USBtinyISP so you can program it with the Arduino IDE (with a few simple config modifications)
  • Micro-USB jack for power and/or USB uploading, you can put it in a box or tape it up and use any USB cable for when you want to reprogram.
  • We really worked hard on the bootloader process to make it rugged and foolproof
  • ~5.25K bytes available for use (2.75K taken for the bootloader)
  • On-board 3.3V power regulator with 150mA output capability and ultra-low dropout. Up to 16V input, reverse-polarity protection, thermal and current-limit protection.
  • Power with either USB or external output (such as a battery) - it'll automatically switch over
  • On-board green power LED and red pin #1 LED
  • Reset button for entering the bootloader or restarting the program.
  • 3 GPIO - The 3 independent IO pins have 1 analog input and 2 PWM output as well.
  • Hardware I2C capability for breakout & sensor interfacing.

For more information about GEMMA, check our out Learn guide

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